#2886 NORM Update.: some files shouldn't be compressed by jffs2

[Zarro Boogs per Child]

#2886: some files shouldn't be compressed by jffs2
--------------------------+-------------------------------------------------
  Reporter:  tomeu        |       Owner:  dwmw2           
      Type:  enhancement  |      Status:  new             
  Priority:  normal       |   Milestone:  Update.2 (8.2.0)
 Component:  kernel       |     Version:                  
Resolution:               |    Keywords:                  
  Verified:  0            |    Blocking:                  
 Blockedby:               |  
--------------------------+-------------------------------------------------

Comment(by dsaxena):

 Replying to [comment:7 ixo]:
 > How about auto-detection of files already compressed?  Aka  PNG , JPG,
 gz, zip, etc... is an easy test of the first 10 bytes, help terminal the
 'likely format of the file?

 Ick, no. Probably the best way to do this is via an xattr and/or possibly
 a new generic O_NOCOMPRESSION flag that can be used by any FS since
 compression is available on
 various file systems these days.

 There are some patches out there in the embedded world for something along
 these lines (though not on JFFS2). I'll poke some folks about this.

-- 
Ticket URL: <http://dev.laptop.org/ticket/2886#comment:9>
One Laptop Per Child <http://laptop.org/>
OLPC bug tracking system